Add page for new ArcadeDB integration

Based on https://github.com/deepset-ai/haystack-core-integrations/pull/2898 and https://github.com/deepset-ai/haystack/pull/10712
we should add a new page about the ArcadeDB integration and also add the logo https://arcadedb.com/assets/images/arcadedb-logo.png